iPhone x review and specifications

The iPhone X is one in every of the foremost exciting phones free this decade – however not as a result of it offers something notably innovative or new.

It’s exciting as a result of it’s the foremost radical design of AN iPhone nevertheless, fastening along variety of key trends within the business and adding in a very level of polish that may attract legions of Apple fans to upgrade, and pay another number of years within the iCycle.

But this transformation doesn’t return low-cost, and nor can it attractiveness to people who get pleasure from a degree of continuity in their upgrades. this can be a brand new manner of interacting together with your iPhone, how that permits you to get pleasure from a lot of of iOS at anybody time, and alters the manner you employ apps with the hyperbolic screen size.

Screen, Screen and more Screen

Right, let’s get all the way down to the new stuff, and after you pull this phone out on the train you'll be able to make certain of 1 thing: it's entirely totally different to something that’s precede from Apple.

It’s rare that we tend to see Apple jumping on a trend this early, however 2017 has been the year once the edge has begun to disappear from the smartphone, and also the iPhone X has jumped decidedly aboard that train.

Apart from the Essential Phone, the new iPhone seems like one among the least-bezelled phones on the market. The lip on the highest of the five.8-inch screen is that the solely factor that gets within the manner of you and also thenew package, with the impact rather beautiful.
 Sat next to last year’s iPhone seven, the iPhone X may be a fully totally different device. The impact of the broader and fuller screen goes to actually impress, particularly if you’ve not command the Samsung Galaxy S8, that compasses a similar show.

It's arduous to magnify however lovely this screen is – and that is not exaggeration brought on by extreme fatigue. It's deep, wealthy and swish, and attracts level with Samsung within the quality stakes simply.

However, what’s completely different here is that the screen on the iPhone X extends right to rock bottom of the device, with the physical home button obscurity in view.

That’s planning to be one among the most important changes for any Apple fans probing for continuity in their iPhone expertise, as they’ll have to be compelled to alter the method they run through their phone.

The resolution of the screen has – fortunately – been upgraded from the iPhone sevenbecause the sub-HD component count wasn’t very one thing Apple might hope to urge away with in 2017 within the face of such robust competition from the remainder of the trade.

Apple’s users don’t wish to maneuver far from its schemehowever if sure specs area aren’t met lately then envy willdevelop once phones are shown off at the bar – therefore the iPhone X has been upgraded to match its rivals, with a resolution of 2436 x 1125 on the new Super membrane HD show.

The only reason the constituent count required to be upgraded was that there’s a particular boost to be had with the cheater screens that produces apps look higher and web-browsing a additional stunning expertise – and with Apple charging the maximum amount because it is for this phone, it required to bring an improved screen.

But what the Cupertino whole has continually been sensible at is creating the expertise sensible without fear an excessive amount of regarding the specification list – that is why the very fact that previous iPhones didn’t have the sharpest screens didn’t hurt it.

The digital display screens had an honest distinction magnitude relation and were colourful and bright – qualities that ar as partaking as chucking in a very load additional pixels.

But the move to the OLED show within the iPhone X has positively brought associate degree upgrade, with the blacks deeper, the colours richer and, well, the result simply sensible.

The Samsung Galaxy Note 8 has been dubbed the most effective show on the market – and currently Apple is victimisation a similar technology in its iPhones.

The overall mixture of technology is nice, and very brings a few special-looking iPhone, instead of Apple rehashing a similar tired style once more.

Better Design

The new iPhone X is definitelysimply the best-looking phone Apple's ever createdwe tend to were fans of the economic style that publicised the arrival of the iPhone fourand therefore the ee lines of the iPhone six.

But it seems like the new phone takes all of these concepts and smashes them into the longer term. If there is one issue that is pervaded the iPhone age of Apple it is the laser-focused thinking on styleand therefore the iPhone X takes that on.

The rear that is currently glass, does not feel as premium because the almost-ceramic metal of previous models, however it still feels solid and secure within the hand. The sides are not sharp, instead folding into the palm in an exceedingly means that is pleasant to carry.

It's a flash phone in addition – which glass will like to suck up a fingerprint.

If you have used any of the iPhone and varyyou will get on instantly with this telephone set. It's got a much bigger screen than the other iPhone, and nevertheless it's smaller than the iPhone 7 and

That doesn't mean it is simple to urge your fingers across the show to achieve all the weatherand there is nearly a sense that you are going to stay touching the show with each flick of a digit.

But in observe it sits within the hand simply fine, and you are able to move with most functions wellThere  is positively a collection of gestures that you've got to use 2 hands, therefore we'd positively still reason this device as a phablet, instead of a 'standard' phone just like the iPhone 7.

Face ID

The big modification to the iPhone combine this year – for the flagship model anyway – is that the loss of bit ID so as to create means for Face ID, the flexibility to open your phone simply by observing it.

This is a daring move from Apple, as it isn't a {technique} that we've ever been a devotee of – we've found that previous handsets looking forward to similar tech are often duped by a photograph of the user, that is not the hardest issue within the world to urge hold of.

Apple's methodology of taking in many totally different face angles, very like after you got to position your finger round the detector to line up bit ID, makes lots a lot of sense, and Apple is predictably claiming that this is often one among the foremost secure styles of this technology out there.

We've not been ready to strive it call at the demo space, however this is often actually one thing we wish to check to visualize if it is a worthy replacement for bit ID.

The demo we tend to were shown was slightly worrying, though. Within the demo on stage the primary phone failing, and once it absolutely was shown to USA the person connected to the phone unbroken has to show the show off and on once more to activate the system.

When control at the proper distance, it worked well and quickly, however we tend to saw lots of lost unlocks in our time with the phone. Apparently it's going to learn your face as time goes on, however this is often one thing we actually got to check intent on check that it is easy to urge into your phone.

It's cool that the phone can solely activate after you cross-check the screen, showing it is aware of you; however the accuracy must be tip prime.

New Cameras

Usually at this time we're talking concerning the camera on the new iPhone and its ability to focus quicker, or take higher low-light shots, or concerning another new feature meaning you'll embarrass your kids within the future with a lot of clarity.

While there are a unit upgrades this point around – a camera lens like that introduced on the iPhone seven and is enclosed, moreover as optical image stabilization for each sensor thus you've a clearer and brighter image whichever mode you are in – its depth sensing that steals the show.

The camera on the rear is fastened on vertically, instead of horizontally, showing that Apple desires you to carry the phone in landscape instead of portrait mode. This can be conjointly on account of the front True Depth camera that takes up most house and is required for Face ID.

AR wasn't very shown off at the event, though we tend to did undertake some games that were fast and very cool to appear at, with the table taking the place of the podium terribly quickly.

With Apple's ARKit and Google's new ARCore, there is not any doubt that consecutive massive contest goes to be within the AR house, with developers having a full new (real) world to play with as a result – and it's attention-grabbing to ascertain Apple go thus early into this house.

The front-facing camera is great at sensing your surroundings and your face, and therefore the ability to map a mask, or rework you into associate degree animated emoji (called Animoji) is genuinely joy-filling.

We can't justify it, however there is one thing superb concerning having the ability to form associate degree on-screen pig frown, or being reworked into a photograph.

The camera itself felt fine, terribly kind of like previous iterations – in brief, this was all concerning having the ability to sense the environment instead of taking higher photos, that was attention-grabbing.

However, the machine learning within ought to be able to higher total what you are snapping and alter the settings to match – and therefore the Portrait Lighting, that showing intelligence learns what's the topic and what is not, and might alter the result of the exposure consequently, is actually beautiful as a feature.

New version of iOS

Pumping at the heart of the iPhone X is that the new A11 Bionic chipset, designed to handle the work the new iPhone is asking thereon for.

The new engine is capable of powering the extra pixels that are unfold around the front of the iPhone X, equally as handling the huge power the AR device is posing for – and on high of that there’s the ultimate improvement in overall performance, and better graphical performance.

This equates to higher battery life, owing to the 10-nanometer manufacturing methodology Apple is rumored to possess used for its new chipset, allowing it to create things lots of economical then enabling it to either crank up the flexibility or improve battery life – or balance the two.

The new chip permits for higher image focusing, higher face unlocking and comprehensive power enhancements – typically this can be often apparently the world's most powerful phone, that it'll have to be compelled to incline the amount of functions it's got, and conjointly the amount of pixels it's to run.

More Power

Pumping at the guts of the iPhone X is that the new A11 Bionic chipset, designed to handle the work the new iPhone is asking on that for.

The new engine is capable of powering the additional pixels that are unfold round the front of the iPhone X, similarly as handling the massive power the AR device is asking for – and on high of that there’s the final improvement in overall performance, and higher graphical performance.

This equates to higher battery life, because of the 10-nanometer producing method Apple is reported to possess used for its new chipset, permitting it to form things a lot of economical and so sanctioning it to either crank up the ability or improve battery life – or balance the 2.

The new chip permits for higher image focusing, higher face unlocking and all-around power enhancements – this is often apparently the world's most powerful phone, that it will need to incline the number of functions it's got, and also the quantity of pixels it's to run.

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iOS 10.2 is now available

On holy day of obligation Apple started the beta testing amount for iOS 10.2, and today, very little over one month later, the ultimate unharness is up for grabs. iOS 10.2 is offered to all or any supported devices, therefore if you've got one in all those expect to examine the update notification terribly shortly (if you haven't already). you'll be able to conjointly install the new unharness via iTunes.

iOS 10.2 introduces quite one hundred new emoji and new wallpapers and iMessage screen effects. It conjointly marks the debut of Apple's new TV app (US-only for now), meant to assist Apple TV house owners simply notice things to observe, and examine their purchased movies and television shows from multiple services. The Emergency SOS feature can contact emergency services after you press the ability button 5 times, whereas the Music app has received larger Shuffle and Repeat buttons.

Camera settings do not reset any longer once you restart the app, and you'll expect to examine further video widgets and single sign-on support for cable subscribers within the United States. Live Photos are improved, whereas the News app gets a Saved section wherever you'll return to the stories you have set to stay around for later. you'll additionally swipe left or faucet Next Story whereas reading to urge to a different item.

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One Plus Three 3T Review

The OnePlus 3T is to the OnePlus 3 what the iPhone 6S was to the iPhone 6. it's significantly identical, however there are some seriously welcome upgrades beneath the body.
Key changes embody a quicker Qualcomm flower 821 processor, thirteen larger battery capability and improved front-facing camera. But, with the rating currently beginning at £399, do the changes justify 3T's multiplied direct cost? as luck would have it for OnePlus, the solution is basically affirmative, that is doubly excellent news because the OnePlus three is being interrupted.

One Plus 3T Design 

Not a good deal has modified here. There ar currently 2 color choices, a replacement bronze end or Soft Gold, though if you wish the new larger 128GB capability possibility you’re restricted to solely bronze. The bronze possibility replaces the previous black lead end accessible with the OnePlus three and could be a very little darker in shade.
Outside of this, the OnePlus 3T remains seven.4mm thick and is formed from one block of aluminum alloy that feels beautiful in hand. OnePlus created an enormous deal regarding however the highest of the frame curves otherwise from the remainder of the perimeters. It’s not one thing you’re planning to notice unless you search for it, however it’s still a pleasant bit.
Look to the lowest of the phone and you’ll notice a showing neatness trained speaker grille, a USB-C port and a electro-acoustic transducer jack. The latter is value drawing attention to as, despite Apple's efforts to kill the three.5mm jack, nobody looks to be during a nice rush to form USB-C headphones over Lightning headphones.
I’m truly all for moving off from the three.5mm jack and use Bluetooth headphones additional typically than not, however there square measure still times once I wish to use a wired affiliation on the far side headphones. Too typically I visited plug the jack-less Moto Z into my automobile radio solely to recollect I’d left the adapter connected to my wired headphones back home. It’s a frustration I will do while not.

Along the left edge could be a three-level Alert Slider to toggle between notification profiles. you'll either have all, priority or none, similar to the OnePlus three. It’s a helpful addition you don’t see typically. Below this is often the amount rocker, and on the other aspect the facility button.
There’s a front fingerprint device, that I’ve forever declared is my most well-liked position over a rear placement. The fingerprint device additionally doubles because the Home button, flanked by electrical phenomenon Back and up to date keys that square measure solely marked by a backlit dot, instead of their customary icons. this is often as a result of you'll swap their positions within the OnePlus 3T’s settings.
The button setup is comparable to the Samsung Galaxy S7's, and means that you'll do away with Android’s on-screen navigation buttons, liberating up additional of the show. you'll still activate the on-screen navigation within the settings if you wish.

Having a alternative is nice and also the customisation choices don’t finish there, on the 3T you'll additionally opt for completely different cutoff actions for double-press and hold inputs for any of the electrical phenomenon buttons.

The fingerprint device feels responsive and on a par with alternative nice fingerprint sensors, like the Huawei P9's, once it involves fastness. It will fall tangled of constant pitfalls as all alternative fingerprint sensors I’ve used tho', thus wet hands can still see you resorting to additional ancient unlock strategies.
Have no text to check? don't have any text to check? Click "Select Samples".Turn the OnePlus 3T over and you’ll see a moderate camera bump from the projecting rear camera. It’s not as pronounced as on sure different phones tho' and OnePlus has additionally created enhancements here by coating the detector in sapphire glass, for an additional level of resilience.
The OnePlus 3T supports twin SIMs, helpful if you've got a private and work variety and don’t wish to hold multiple devices. The second SIM slot doesn't double as a microSD card slot, as is that the case with sure different phones, thus there’s no expandable storage, similar to the OnePlus three.
But as mentioned, there's currently 64GB (£399) and 128GB (£439) capability choices. further|the additional} for 128GB isn’t a whole heist compared to what others have charged for extra storage, either. Otherwise, NFC makes a welcome come thus you'll be able to use golem Pay.

ONEPLUS 3T – Display

The 3T's 5.5-inch screen is on paper a twin of the OnePlus 3's. it's an equivalent one,920 x 1,080 resolution and uses an equivalent Optic AMOLED technology. That’s not progressing to quantity to the best pixels-per-inch density within the world, however with general use it’s not one thing you’re progressing to notice.
The Optic AMOLED technical school suggests that black levels ar very good and therefore the show still appearance super sharp, notwithstanding its comparably low pixels-per-inch count. Viewing angles also are glorious, with restricted brightness drop-off once viewed off-centre.

I was additionally affected with the reserved car brightness adjustment. Too several of the phones I’ve tested have had terribly aggressive automatic adjustment settings that kick in even once close light-weight levels haven’t modified. Brightness on the OnePlus 3T is additionally quite adequate for outside use.

One of the chief complaints once the OnePlus three launched was its uncomplimentary and unnatural color activity. This was one thing that eventually got mounted through software system updates, that is a minimum of a testament to OnePlus paying attention to its customers.

Luckily, a number of these learnings are applied to the OnePlus 3T. Out of the box colors ar somewhat oversaturated however the show appearance nice and if truth be told, this is often however I left the show throughout most of my testing.

If you wish additional natural, representative colors, associate sRGB activity profile is additionally associate possibility, that makes the colors look significantly additional muted. Another custom possibility helps you to manually modify the color temperature to your feeling.

From the short Toggle menu you'll be able to additionally activate an evening mode, that knocks down the blue light-weight a part of the color spectrum. This makes the show somewhat less harsh on your eyes within the dark moreover as purportedly reducing the impact on your biological time.

Like the Moto Z, there’s additionally associate close show that turns the show on in an exceedingly low-power mode once notifications are available, moreover as Proximity Wake that activates the show once you wave your turn over the camera. The latter doesn’t work moreover because the Moto Z’s dedicated proximity sensors, however.

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One Plus Three Review

It looks the OnePlus three hasn't been out long enough to get replaced, however that is exactly what is going on, and solely mere 5 months once it absolutely was 1st proclaimed. The OnePlus 3T is here, it's attending to be OnePlus' new flagship smartphone and once existing stocks of the OnePlus three run out the corporate will not be creating from now on.

The OnePlus threeT is that the OnePlus 3, however a trifle bit higher. It offers a processor upgrade, from the 2.15GHz Qualcomm flower 820 utilized in the OnePlus three to the two.35GHz flower 821 — a similar processor utilized in the Google element phone and element XL. The battery is slightly larger at three,400mAh compared with the first version's three,000mAh and its Dash Charge technology will deliver nearly five hundredth charge in half-hour..

There's additionally AN upgrade to the front-facing camera, with the OnePlus 3T moving from AN 8-megapixel snapper to a honestly silly 16-megapixel one, however one issue that hasn't modified a lot of is that the chassis. Physically, the OnePlus threeT is near-indistiguishable from the OnePlus 3.

Alas, there is some unhealthy news here likewise. The OnePlus threeT can price far more than the OnePlus 3 — at £399, in fact, it's twenty first costlier — and, as long as it'll replace instead of complement the OnePlus three, it is a blow for smartphone discount hunters.

Our full OnePlus three review follows, however fulfil to mention if you are looking for a mid-range smartphone discount, it's like you are going to wish to act quickly and snaffle a OnePlus three. OnePlus itself has already sold out, thus you'll have to seem elsewhere from currently on.

ONE plus Three Full Review
The OnePlus three is one in all the foremost extremely anticipated smartphones of 2016 thus far, and it's lots to measure up to. Its forerunner, the OnePlus a pair of, has been my decide of the sub-£300 smartphones ever since it launched last year, and remains on sale at £249. The new model is £60 dearer, thus is that the OnePlus three definitely worth the worth hike?

Immediate impressions square measure positive. though the phone has an equivalent five.5in-sized screen because the OnePlus a pair of, elsewhere, it’s all amendment. The headline specifications see the new phone move to the quicker, additional economical flower 820 processor, with double the quantity of RAM. The OnePlus three has NFC additionally to a front-mounted fingerprint reader, permitting it to be used for contactless payments via humanoid Pay. though the screen is that the same size, OnePlus currently employs AMOLED school wherever its forerunner had associate degree IPS show. and therefore the camera sees associate degree upgrade in resolution and options.

I wasn’t quite as taken aback with the planning after I initial clapped eyes on that. it's bland from a distance; a style that’s blurred, that appears spookily just like the long-lost by-blow of the HTC One M9 and Honor 5X, that merely doesn’t build a press release.

Get it in your hand, however, and it’s a special story. The OnePlus feels strong and refined all told the proper ways in which. In fact, you recognize what? It’s nice. extremely nice. chuck the tasteless appearance – the OnePlus three is fabulous price.

In fact, if you gave this to American state and blanked out the brand, I’d guess it absolutely was a way more pricy phone, nearer to £600 than £329. It’s lighter and slimmer than the OnePlus a pair of, shaving one7g off that phone’s weight and 1.5mm off its thickness, despite having the same-sized screen, and it’s full of beautiful very little details. the sides of the screen area unit slightly rounded, the buttons have a solid, positive click, and therefore the do-not-disturb slider on the left edge includes a beautiful mechanical snick thereto.

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security for your computer

We use computer to perform several task in our daily life. They are used to process and store valuable information. Some information may be very important to organization. The loss of these important data can cause serious damage to the organization. It takes lots of money and effort to recover them. As the computer system is delicate electronic and electro mechanical system. It should be used and kept safely. If we do not use it properly, its hardware as well as software, may damage any time. Hence, computer security plays a vital role to the growth and survival of any organization. So, proper management of computer is essential for every organization.

Computer security includes the policies, procedures, tools and techniques designed to protect a company’s computer assets from accidental, international or natural disasters, including accidental input our output errors, theft, breaking or physical damage and illegal access or manipulation of data.

The protection of computer system from accidental or intentional harm, including destruction of computer hardware and software, physical loss of data, deception of computer users and the deliberate invasion of database by unauthorized individuals is called computer security. In other words, the protection of computer, its accessories, data and programs for a long life of computer system is known as computer security.Computer security is concerned with the hardware security as well as software security.


Hardware is the essential part of computer system. Computer can not perform any task without hardware. All the physical parts of the computer such as CPU, Mouse, Monitor, Keyboard, Printer etc are known as hardware. Without existence of hardware software is useless. Hardware plays very important role for proper functioning of our computer system. So, we must check and maintain hardware components frequently. We should replace defective parts of hardware immediately. Now-a-days, hardware diagnostic facilities are

available to find defective hardware comments of the computer system.The protection of al l hardware components used in computer system is known as hardware security.

Some common hardware security measures are as follows:

I. Regular Maintenance

II. Insurance

III. Dust free environment

IV. Protection from fire

V. Protection from theft

VI. Air Condition System

VII. Power Protection Devices (UPS, Volt Gu

ard and Spike Guard)

VIII. Avoiding unrelated persons in the computer rooms.


Regular maintenance is necessary for proper functioning of our computer system. We should clean our computer and its peripherals regularly by using dust cleaner. We should scan hard disk using latest and updated Anti-virus software to make it virus free. We should format hard disk time to time in order to make our computer system fast. It is better to delete unnecessary files from hard disk. Upgrade some hardware components as well as software to make computer system fast.


The term Insurance is not new for us. Generally people insurer their health, life, company, building, vehicle, etc. But nowadays many people also insure their computer. If our computer is damaged or lost we can claim for the insurance amount and replace the computer system easily. So, it is being one of the hardware security measures of our computer.


Dust is one of the major factors which cause infection of our computer system. Dust effect external as well as internal parts of our computer system. So we should keep our computer in the dust free place. We should use dust cover to prevent our computer from dust.


Fire is another factor, which cause infection of our computer system. Fire can damage whole computer system. It is very dangerous factor so we must be very careful about fire. It may cause by smoking, so it is better to avoid smoking inside computer room. Another chance is by electricity so proper wining is necessary inside the computer room. Keeping fire extinguishers can be a good idea.


As we all know that computer is an expensive machine as compared to other common machines. So we must keep our computer system in the secure place to protect from theft. If we are not careful, someone can easily state important parts of computer system from computer room. We must lock doors of computer room properly. The entry and exit of computer room must be well controlled and monitored. Unknown or unauthorized persons should not be allowed inside the computer room. Construct the computer room with emergency doors and windows. We can hire security guards to guard computer room.


We should maintain suitable temperature and circulation of air in the computer room. Low or high temperature in the computer system may cause unexpected crashes during the operation of computer. Heat can break down contracts or junctions in the chip or other devices. So, there should be proper air condition to maintain suitable temperature in the computer system. Similarly there should be enough light in the computer room. We can use cooler or fan to prevent heat built-up.


The computer system is made of delicate electronic and electro-mechanical components. We all know that it needs electric power to operate. It needs 220-240 Volts (AC) and the frequency of AC should be 49.5 Hz to 50Hz. High voltage or fluctuating voltage may cause several hardware damage. Our important data and programs can be lost due to sudden power failure. To avoid such unpredictable behavior of the power supply, we have to use some kind of power protecting devices. Some power protection devices are:

I. Uninterruptible Power Supply (UPS)

II. Volt Guard

III. Spike Guard


A computer needs a well regulated power supply for the proper functioning of its various parts. UPS is a device that stores electricity and automatically provides backup power to the computer in case of electricity failure is the source. It is activated when it detects a loss of power from the source and prevents loss of data and damage of computer parts that might be caused due sudden power failure. It also prevents our computer system against sudden power surge. It acts like a buffer between the incoming power supply and the computer system. It constantly monitors the quality and characteristics of the power supply. Nowadays a several different types of UPS having different capacities are available in the market. We should buy UPS from a well-known and reputable company.


Volt Guard is another important power protection device. It provides constant output voltage to the computer system in case of high input voltage coming from the source. As we have known that our computer system needs voltage between 220 to 240volts and high or low voltage affects our computer system. Volt Guard plays important role to save our computer system from damage due to high voltage. If the input voltage comes from the source, it provides constant output voltage between the ranges 220 to 240 volts. So, we must use Volt Guard in our computer system.


The lightening in the rainy season can cause sudden increase in the voltage level of the AC-line supplied to our house. The voltage can increase more than 2000V in our normal 220V supply. The over voltage can severely damage the electric device running at the time. This sudden over voltage is known as spikes. Spikes are very brief over voltage up to 2000V or more caused due to lightening, power- line faults etc. To save the electronic device from these spikes, we need the special, equipment called spike guard. Spike guards are the electronic device, which remove the spike and prevent it from entering into the main system.


Data and programs or software is very important things. Computer can not perform any task without software. We cannot operate our computer without operating system software. Some information of organization may be very important and the loss of these data can cause serious damage to the organization. It is very costly to recover these important data and some cases that is impossible to recover them. So, data and software security is essential for any organizations as well as every computer users. Software security is the most convenient way of safeguarding our computer system.

The protection of data and programs used in computer system is known as software security.

For protection of data and programs in our computer systems, we should apply some security measures. Some common software security measures are as follows:

Ø Password Protection

Ø Backup System

Ø Defragmentation

Ø Scan Disc

Ø Virus Scanning


The password scheme is one of the easiest and easiest and reliable method of protecting important data and information in our computer system. It is the common type of authorization control. If we protect our document by using password, only authorized users can open the document. Password is the primary source of data protection; it is a set of characters that acts like a key to unlock the system. Separate password can be used to access a system, an application, or even a file in a given application. The user in an organization who is permitted to access the company database is issued with a user ID and password and only certain level of access rights are provided to them by database administrator.

The success of this type of security depends on the ability of the user to create a password that is difficult to guess and to keep the password confidential. In order to ensure tight system security, many companies have policies that mandate the use of hard to guess passwords or randomly generated password and require employees to change their passwords frequently.

Some common rules while creating password:

· Password must be at least 6 characters.

· The word used in password should be difficult to guess for others.

· We should keep our password confidential.

· We have to change our password frequently.

· Files, which store password, must be encrypted.


Creating backup consists of making extra copies of programs or data. It provides safeguard against the loss of data or programs in computer memory, on hard disk or on diskettes. While creating backup data to a file, we have to give file name and location for the file to be saved. We can create a extra copy of data in our hand disk by using backup utility. Sometime our original data in the hard disk may erase, in that case we can restore our data from backup copy. It is always a good idea to create backup copies of our important data and programs.


Defragmentation is the process of rewriting parts of a file to contiguous sectors on a hard disk to increase the speed of access and retrieval. When files are updated, the computer tends to save these updates on the largest continuous space on the hard disk, which is often on a different sector than the other parts of a file. When the files are fragmented the computer must search the hard disk each time the file is opened to find all of the file parts, which slows down response time.

Thus hard disk needs to be defragmented using disk defragmenter. The defragmenter is available in most of the latest operating system such as windows 98, windows XP, windows vista in its system tool.


Scandisk feature is used to detect and repair errors on disk. This feature is available in windows 95/98/Me and Dos.6.2 operating systems. The scandisk feature included in windows 95/98 can search corrupted files also.


Computer viruses are the most defective factor of data and software. Viruses may damage our data and software. Viruses produce several unusual symptoms in our computer and used to give trouble to the user while working with computer. So, we should keep our computer free from viruses. For that we should scan our computer regularly using latest and updated Anti-Virus software. We can also install an ‘On access’ scanner and configure it to start automatically each time we boot our computer.


We should not use pirated software but should go for the original software. The pirated software can contain several viruses. No one can guarantee the stability and performance of the pirated software.

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What is Multimedia Technology?

As we know multimedia system can create, store, compress, decompress and show the multimedia contents. Several techniques can be used by multimedia systems to do so. These techniques are collectively called the multimedia technology. Multimedia technology comprises of different techniques that are used by multimedia systems.
By the use of multimedia technology different multimedia applications have been built and implemented in real life to make different jobs easier. Educational multimedia applications enable students to study at home. Different animation packages help to visualize the different phenomenon, which would otherwise be impossible in classrooms. We can visualize several complicated processes like how human heart works, how is the structure of human heart, how brain transmits signals, how volcanoes erupts and lots of other things with the help of multimedia technology. Thus, multimedia technology has enabled us to visualize and realize virtually, many things that would not be possible otherwise. Even if it was possible, it would be very costly for general people to afford it. We can even do the lab exercise without science laboratory by the use of laboratory multimedia made by simulating the laboratories.
Multimedia technology has also improved the communication systems. We can use videoconferencing tools these days by which we can held the huge world wide conference without every body meeting in a same place. In video conferencing every body taking part in the conference sit aside of their computers and put their news, views and ideas in front of other participants. The participants also can comment, accept or reject ones ideas or put any questions ahead for discussions. Through video technology every participants of the conference can also see each other in their multimedia computers. Video conferencing is in fact a tool and a technology that virtually brings many people spread all over the world together to discuss on some matters. People could interact witheach other as if the single conference hall.

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